Measurements of spin rotation parameter A in pion-proton elastic scattering at 1.62 GeV/c
I.G. Alekseev, P.E. Budkovsky, V.P. Kanavets, L.I. Koroleva, B.V., Morozov, V.M. Nesterov, V.V. Ryltsov, D.N. Svirida, A.D. Sulimov, V.V., Zhurkin (ITEP, Moscow, Russia), Yu.A. Beloglazov, A.I. Kovalev, S.P. Kruglov,, D.V. Novinsky, V.A. Shchedrov, V.V. Sumachev
TL;DR
This paper reports measurements of the spin rotation parameter A in pion-proton elastic scattering at 1.62 GeV/c, providing experimental data to compare with theoretical partial wave analysis predictions.
Contribution
First measurement of the spin rotation parameter A in pion-proton elastic scattering at this energy, using a polarized target and advanced detection setup.
Findings
Results are consistent with some partial wave analysis predictions.
Data provides new constraints for theoretical models.
Experimental setup successfully measured spin rotation at this energy.
Abstract
The ITEP-PNPI collaboration presents the results of the measurements of the spin rotation parameter A in the elastic scattering of positive and negative pions on protons at P_beam = 1.62 GeV/c. The setup included a longitudinally-polarized proton target with superconductive magnet, multiwire spark chambers and a carbon polarimeter with thick filter. Results are compared to the predictions of partial wave analyses. The experiment was performed at the ITEP proton synchrotron, Moscow.
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